Automatic electromagnetic switch and stand for pressing-irons.



1X 1 bu 100% y F. E. EMERY. AUTOMATIC ELECTROMAGNETIC SWITCH AND STANDFOR PEESSING moms. APPLIGATION F [LB-D AUG. 24,1908. 9]; 3,4;81 PatentedFeb. 23, 1909.

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I F. 1:. rmmur, AUTOMATIC ELEOTBOHAGNBTIO SWITCH AND STAND'POB. PBESSINGIRONS. v AP-PLIQATIOI FILED AUG. 24, 1908 91 3,431, I I PatentedFeb. 23,1909.

2 sums-sum 2.

UNITED STATES PATEN FRANK E. EMERY, OF NEW YORK, N. Y.

AUTOMATIC ELECTROMAGNETIC SWITCH AND STAND FOR SSMH'G dM:

Specification of Letters Patent.

Eaten Application and August 24, 1908. Serial No. eases i.

To all whom it may concern:

Be it known that I, FRANK E. EMERY, a

' citizen of the United States, residing at "New York, county of NewYork, and State of New York, have invented certain new andprovision ofan electro-magnetic switch and stand for electrically heating pressingirons which will have novel switch mechanism adapt-ed to cause aquickmake or break of the circuit and thus minimize sparking when thepressing iron is placed on the stand or removed therefrom; noveloperating means actuated by the placing of the pressing iron on thestand or its removal therefrom, which electrically controls theoperation of the switch which closes or opens the circuit to thepressing iron, which may be set so that the circuit cannot be completedwhen the pressing iron is placed on the stand and will also serve as-asignal to indicate whether the current is onor off, when the iron is onthe stand; and, generally, to provide a novel electro --magneticallyoperated switch and stand of simple and etlicient construction, adaptedfor adjustment to suit conditions of use, certain in its operation,inexpensive of manufacture, and which will require no special knowledgefor its use and will be practicallyincapable of derangement throughcarelessness. s

The invention is susceptible of many changes without a departure fromthe spirit and scope thereof, but in the following specification a fulldisclosure is. given of a convenient form the invention may assume.

In the accompanying drawings :Figure 1 is a plan view; Fig. 2, a dcelevation, dotted lines showing the normal position of the parts withthe exception that the combined arm and signal is also shown by dottedlines in raised position as when it is desired touse the stand withoutheating the iron, and Fig.

3, a detail of the contact block and rod.

The support 1 for the pressing iron stand may be supported in any way,as by short 1 pillars or columns 3 so that will be at a suitable heightto permit ready placer! cut and removal of thepressing iron to and froml l l l l 1 l l i Surrounding the rod and extei the ironing board ortable. The pressin iron stand 3 is suitahty secured to the sup port 1.

111M, r .i r11 i re support carries t uee upiigiii arc rec frames 4, 5and 6. A rod 7 which is journaled in the sides or legs of the arch'5,has

securely connected thereto switch 8 which carry contact blocks 9 attheir outer ends, suitable insulation 10 properly instilating thecontact blocks from the arms 8, and also the binding screws 11. Thecontact arms 8 rest upon coil springs 12 which are supported by the topof the arch 6 and surround stationary pins 13 projecting upwardly fromsaid arch 6 and lying within elongated slots 14 in the switch arms. Thepressing iron 15, which has the usual handle 16, is provided withcontact blocks 17 on its front upperpart, said bloc-ks being suitablyinsulated from the pressing iron and being in circuit with theresistance carried by the iron from which said iron derives its heatwhen the current is on. Located between the frames 4 and 5 is a suitableelectro-rnagnet 18 which is secured to the support 1.

Journaled in the legs of frame 4 is a rod 19 to which are securedarmature levers 20 carrying armatures 21. The armature carry adjustablescrews 22 at their outer s whose tips bear upon the respective switclarms 8. By adjusting the screws 22, the amount of play of the armaturelevers and switch arms and the strength of the mag netic attraction maybe readily regulated. Secured to the upper part of the frame or arch 4is insulating material 23 to which is fastened contact blocks or arms24.

The feed wires are shown at 25 as directly connected to the bindingscrews 11 on the respective switch arms and the clectro-niaig net 18,and the spring contacts or arms 24 are in a shunt 26 on said feeder- J.

Slidable through cross-pieces carried by the frames or arches 4 and5 isa round rod 29 "which carries pins -30 and 31 which are adapted to limitits play in both directions, said rod being urged towardthe red by aleaf spring 32 secured to the frame t and bearing against the on of saidred. ung through an aperture therein is insulating material 3-3 to whichis fastened byei screw 3 square shaped contact 3; of suin cut width topass he ween the spring contacts and to engage them with sufiicientfrictional contact to insure prop completion of the cir- (Fig. :2.) a,

cuit when the rod 29 is pushed to the left, as shown in full lines, butwhen the rod is pushed to the right by the spring 32, the

lock 34 passes out of engagement with the spring arms 24. and thecircuitis broken. Secured by nuts 35 to the inner end of the rod 29 is acombined arm and signal 36., The nuts afford means for adjusting the arm36 lengthwise of therod and securing it where adjusted. Y

The arm 36 when turned into downward position, as shown in Fig. 2, is inline to be engaged by the handle 16 of the pressing iron so that whenthe pressing iron 15 is placed upon the stand 3, ifthe arm 36 is inlowered position, the handle 16 will engage it and push the rod 29 tothe left, thereby bringing the contact 34 into engagement with thespring arms 24 (Fig. 1), whereupon the circuit 26 to the electro-magnet18 is com leted and the armatures 21 are immediate y attracteddownwardly, and their movement causes the screws 22 tosnap the switcharms 8 downwardly against the reactionary eflect of the coil springs 12and causes the contact blocks 9 to engage the contact blocks 17,whereupon the main circuit 25supplies electrical current to the pressingiron and the latter is heated as long as it remains on the stand. Onremoving the pressing ironfrom the stand, the spring 32 pushes the rod29 to the right and the contact block 3 1 disengages from the springs24, whereupon the shunt circuit 26 is opened and the denergization ofthe electro-magnet 18 permits the springs 12 to throw the switch armsand armature levers upwardly, and the contact blocks 9 separate from thecontact blocks 17, thus breaking the circuit 25 to the pressing iron.

When the user desires merely to lace the iron on the stand and does notwis. to heat 'it, the arm 36 is turned, with the rod 29, int-o theupright osition shown by dotted lines in Fig. 2, and ence it is out ofposition for engagement by the handle 16 and the SVltCll is notoperated. WVhen in upright position, the arm 36 serves as a signal toindicate that the current is off, and the iron will not be heated ifplaced on the stand or is not being heated while on the stand.

I desire it understood that I consider myself the first and originalinventor of an electro-magnetically operated switch and stand forpressing irons and of a signal of any kind when used in connection withthe same and I lay claim to all modifications of the present invention.

Having thus described my invention,

heating of the pressing iron, and a self-contained pressing iron havingcontacts adapted to be engaged by said switch.

2. The combination with a pressing iron stand, cf anelectro-magnetically operated switch therefor forcontrolling theelectrical heating of the pressing iron, -means controlling the circuitof said electro-magnetically operated switch, and a pressing ironadapted to mechanically operate said means when placed on the stand.

3. The combination with a pressing iron stand, of anelectro-magnetically operated switch therefor for controlling theelectrical or indicator adapted 'to show whether the switch is open orclosed.

4. An electro magnetically operated switch and stand for pressing ironsembracing an electro magnetically operated switch for controlling thecircuit for heating the pressing iron, -and means mechanically operableby the pressing iron for opening and closing the circuit of theelectro-magnetically operated switch aforesaid, said means beingshiftable out of position so that it will not be engaged by thepressingiron.

5. An electro-magnetic switch and stand for pressing irons embracing anelectromagnetically operated switch adapted to open and close thecircuit for heating the pressing iron, and a self-opening switchcontrolling the electro magnetically operated heating of the pressingiron, and "asignal switch and adapted to be mechanically operated by thepressing iron.

6. An electro-magnetic switch and stand for pressing irons embracing anelectromagnetically operated switch adapted to open and close thecircuit for heating the pressing iron, a self opening switch controllingthe electro magnetically operated switch, and an operating device forclosing said switch which is adapted to be positioned for engagement bythe ressing iron or shifted out of position so that it will not beengaged thereby. v

7. An electro-magnetic switch and stand for pressing irons embracing anelectromagnetically operated switch adapted to open and close thecircuit for heating the pressing iron, a self opening switch controllingthe electro magnetically operated switch, said self-opening switch beingcontrolled by a spring actuated slidable rod having a movable memberadapted to be positioned for engagement by the pressing iron or to bemoved out of position for engagement thereby.

In testimony whereof, I hereunto aflix my signature in presence of twowitnesses.

FRANK E. EMERY.

